Mathematics · Time and Work
P alone can complete a piece of work in 36 days. Q and R together can complete the same work in 45 days. In how many days can P, Q, and R together complete the same work?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 115 days
- 225 days
- 320 days✓
- 422 days
Correct answer
20 days
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